高蜡油成因及其形成聚集的地球化学效应  

Dynamics Processes and Geochemistry Effects for the Formation and Accumulation of High-wax Oils

作　　者：韩霞[1] 田世澄[1] 张占文[2] 

机构地区：[1]中国地质大学,北京100083 [2]辽河油田勘探开发研究院,辽宁盘锦124010

出　　处：《地质科技情报》2007年第5期73-78,共6页Geological Science and Technology Information

摘　　要：全球湖相原油的含蜡量普遍较高,在辽河断陷大民屯凹陷、南阳凹陷原油的含蜡量高达59%。关于高蜡油的成因,最初有陆相高等植物成因说,近年来认识到低等水生生物也可生成高蜡油,但对部分高蜡油的成因机制依然不清楚。除了母质因素外,着重论述了微生物改造作用、催化合成反应、温度场效应、压力场效应、运移分馏效应等动力学作用和地球化学效应对高蜡油形成聚集与次生变化的控制作用。讨论了大民屯凹陷高蜡油的成因及其形成聚集的地质-地球化学作用。The paper summarizes various geneses, geologic dynamics processes and geochemistry effects for formation and accumulation of high-wax oils. In General, the crude oils from lacustrine facies in China contain relatively high wax content （〉8%）. In certain areas, wax content is higher （above 59%）. Generally the genesis of high-wax oils is recognized to be derived from terrestrial higher plant deposited in the - kalinity lacustrine environment. Recently, it is widely accepted that aquatic organism can also produce high-wax oils. Besides parent material, other factors, such as the microorganism transformation, the catalytic synthesis, the temperature field and the migration fractionation, also significantly control the formation, accumulation and secondary change of high-wax oils. Correspondingly, the paper discusses geneses and geochemistry processes for the formation and accumulation of high-wax oils in Damintun depression, Liaohe Basin.

关 键 词：高蜡油成因 动力学作用 地球化学效应 温度场效应 催化合成反应 运移分馏效应 

分 类 号：TE122.1[石油与天然气工程—油气勘探]